Wikipedia:
In Alan Moore’s graphic novel The League of Extraordinary Gentlemen: Black Dossier, Bertie appears in the segment “What Ho, Gods of the Abyss?” which comically mixes elements of Wodehouse with H.P. Lovecraft’s Cthulhu Mythos. Bertie blithely recounts the arrival of a Mi-go to Brinkley Court and Aunt Dahlia’s possession by Cthulhu. The Lovecraftian menaces are driven off by Jeeves with the assistance of Mina Murray, Allan Quatermain, Carnacki, and Orlando, but not before Gussie Fink-Nottle’s brain is surgically removed (a condition that, in the end, causes no real difference in his behavior). Throughout the events, Bertie remains unaware of the true nature of the goings-on.
What.